const keyName = 'app-admin-'
export const setStore = (params = {}) => {
    let {
      name,
      content,
      type
    } = params
    name = keyName + name
    const obj = {
      dataType: typeof (content),
      content: content,
      type: type,
      datetime: new Date().getTime()
    }
  
    if (type) {
      window.sessionStorage.setItem(name, JSON.stringify(obj))
    } else {
      window.localStorage.setItem(name, JSON.stringify(obj))
    }
  }
  /**
   * 获取localStorage
   */
  
  export const getStore = (params = {}) => {
    let {
      name,
      debug
    } = params
    name = keyName + name
    let obj = {}
    let content
    obj = window.sessionStorage.getItem(name)
    if (validatenull(obj)) obj = window.localStorage.getItem(name)
    if (validatenull(obj)) return
    try {
      obj = JSON.parse(obj)
    } catch (e) {
      return obj
    }
    if (debug) {
      return obj
    }
    if (obj.dataType === 'string') {
      content = obj.content
    } else if (obj.dataType === 'number') {
      content = Number(obj.content)
    } else if (obj.dataType === 'boolean') {
      content = eval(obj.content)
    } else if (obj.dataType === 'object') {
      content = obj.content
    }
    return content
  }
  /**
   * 删除localStorage
   */
  export const removeStore = (params = {}) => {
    let {
      name,
      type
    } = params
    name = keyName + name
    if (type) {
      window.sessionStorage.removeItem(name)
    } else {
      window.localStorage.removeItem(name)
    }
  }
  
  /**
   * 获取全部localStorage
   */
  export const getAllStore = (params = {}) => {
    const list = []
    const {
      type
    } = params
    if (type) {
      for (let i = 0; i <= window.sessionStorage.length; i++) {
        list.push({
          name: window.sessionStorage.key(i),
          content: getStore({
            name: window.sessionStorage.key(i),
            type: 'session'
          })
        })
      }
    } else {
      for (let i = 0; i <= window.localStorage.length; i++) {
        list.push({
          name: window.localStorage.key(i),
          content: getStore({
            name: window.localStorage.key(i)
          })
        })
      }
    }
    return list
  }
  
  /**
   * 清空全部localStorage
   */
  export const clearStore = (params = {}) => {
    const {type} = params
    if (type) {
      window.sessionStorage.clear()
    } else {
      window.localStorage.clear()
    }
  }
  
 
/**
 * 判断是否为空
 */
export function validatenull(val) {
  if (typeof val === 'boolean') {
    return false
  }
  if (typeof val === 'number') {
    return false
  }
  if (val instanceof Array) {
    if (val.length === 0) return true
  } else if (val instanceof Object) {
    if (JSON.stringify(val) === '{}') return true
  } else {
    if (val === 'null' || val == null || val === 'undefined' || val === undefined || val === '') return true
    return false
  }
  return false
}

